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Question 1

2. What type of acid is in vinegar?

Answer 1

Ethanonic is the acid that is in vinegar.

Question 2

3.What acid is in fruits?

Answer 2

Citric acid is in fruits.

Question 3

4. Is acid rain harmful and if it is name 3 reasons?

Answer 3

It causes deforestation, it decays statues made of limestone and it can pollute water and even kill fish.

Question 4

5. On the PH scale what type of substance is it and what colour is it if it is the number 10?

Answer 4

It is a weak alkali and and it is the colour blue.

Question 5

6.What causes global warming?

Answer 5

Carbon dioxide is ozone in the air.

Question 6

7. What do you do if you spill a strong acid that could possibly be very harmful?

Answer 6

You would dilute it to make it less harmful.

Question 7

8. What is the best indicator to use for an experiment?

Answer 7

Universal indicator

Question 8

9. What colour does litmus go if you put acid in it?

Answer 8

Red

Question 9

10. What colour does litmus go if you put alkali in it?

Answer 9

Blue

Question 10

11. What is the acid that is in your stomach?

Answer 10

Hydrochloric

Question 11

12. Name 5 different hazardous symbols?

Answer 11

Toxic
Irritant
Harmful
Corrosive
Highly flammable

Question 12

13. If you put an equal amount of acid and alkali what does it make?

Answer 12

Salt and water.

Question 13

14. If i add an equal amount of acid and alkali together what takes place and what colour forms?What is the pH also?

Answer 13

14.Neutralization forms a green colour with a pH of 7.

Question 14

15. On the PH scale what would happen if an equal amount of acid and alkali. What is the called?

Answer 14

Neutralization

Question 15

16. When we add universal indicator to the alkali what colour did it turn?

Answer 15

Blue

Question 16

17. How many things are you aloud to change to make it a proper practical?

Answer 16

Two things you are aloud to change

Question 17

18. What is an independent variable?

Answer 17

What you change

Question 18

19. What is an dependent variable?

Answer 18

Changes as it depends on dependent variable

Question 19

20. What is an control variable?

Answer 19

Variables that are kept the same

Question 20

21. If we had a large substance on acid and a drop of strong acid and we drop it in. Would it affect it and why?

Answer 20

It would not affect it because only one drop would not make a difference to this big substance

Question 21

22. On the PH scale what is the number when the colour is yellow?

Answer 21

Weak acid

Question 22

23. What is so good about the universal indicator?

Answer 22

It is universal which means that it can be read and recognised anywhere in the world

Question 23

24. Name 5 safety rules for practicals?

Answer 23

Stools pushed in
Sleeves and tie tucked in
Wear safety goggles 
Tidy workspace 
Stand during practical

Question 24

1. Are all acids dangerous? Explain why?

Answer 24

No not all acids are dangerous because some of them we eat.